package com.itheima.reggie.controller;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.service.EmployeeService;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;

/**
 *
 * 员工管理
 */

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {

          /**
           * 员工登录
           */
         // 1.将页面提交的密码password进行md5加密处理
          String password = employee.getPassword();
          password = DigestUtils.md5DigestAsHex(password.getBytes());

          //2.根据页面提交的用户名username查询数据库
          LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
          queryWrapper.eq(Employee::getUsername,employee.getUsername());
          Employee emp = employeeService.getOne(queryWrapper);

          //3.
          if (emp==null){
              return R.error("登录失败");
          }
          //4.密码对比,如果不一致则返回登录失败结果
          if (!emp.getPassword().equals(password)){
              return R.error("登录失败");
          }
          //5.查看员工状态,如果为已禁用状态,则返回员工已禁用结果
          if (emp.getStatus()==0){
              return R.error("账号已禁用");
          }
          //6.登录成功,将员工id存入session并返回登录成功结果
          request.getSession().setAttribute("employee",emp.getId());
          return R.success(emp);
      }
          /**
           * 退出员工登录
           */
        @PostMapping("/logout")
        public R<String> logout(HttpServletRequest request){
            //清除session中保存的登录员工id
            request.getSession().invalidate();
            return R.success("退出成功");
        }
    /**
     * 新增员工
     * @param employee
     * @param request
     * @return
     */
    @PostMapping
        public R<String> save(@RequestBody Employee employee,
                              HttpServletRequest request){
            log.info("新增员工,员工信息:{}",employee.toString());
            //设置初始密码123456,需要进行md5加密的处理
            employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
            //设置创建时间
           //employee.setCreateTime(LocalDateTime.now());
           //employee.setUpdateTime(LocalDateTime.now());
            //获得当前登录用户的id
           // long empId = (long) request.getSession().getAttribute("employee");
           // employee.setCreateUser(empId);
           // employee.setUpdateUser(empId);
            employeeService.save(employee);
            return  R.success("新增员工");
   }
    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
        @GetMapping("page")
        public R<Page<Employee>> page(Integer page,
                      Integer pageSize,
                      String name){
            //构造分页构造器
            Page<Employee> pageInfo = new Page<>(page, pageSize);
            //构造条件构造器
            QueryWrapper<Employee> queryWrapper = new QueryWrapper<>();
            //添加过滤条件
            queryWrapper.like(StringUtils.isNotBlank(name),"name",name);
            //添加排序条件
           queryWrapper.orderByDesc("update_time");
            //执行查询
            employeeService.page(pageInfo,queryWrapper);
            return R.success(pageInfo);
        }
    /**
     * 根据id查询
     * @param id
     * @return
     */
        @GetMapping("{id}")
        public R<Employee> getById(@PathVariable long id){
             Employee employee = employeeService.getById(id);
             return R.success(employee);
         }
    /**
     * 修改员工信息
     * @param employee
     * @param request
     * @return
     */
        @PutMapping
        public R<String> update(@RequestBody Employee employee,
                        HttpServletRequest request){
            //employee.setUpdateTime(LocalDateTime.now());
            //long empId = (long) request.getSession().getAttribute("employee");
            //employee.setUpdateUser(empId);
            employeeService.updateById(employee);
            return R.success("员工修改成功");
        }
}
